#include<stdio.h>
int main()
{
	float average(float array[], int n);
	float score1[5] = { 98.5,97,91.5,60,55 };
	float score2[10] = { 67.5,89.5,99,69.5,77,89.5,76.5,54,60,99.5 };
	printf("The average of class A is %6.2f\n", average(score1, 5));
	printf("The average of class B is %6.2f\n", average(score2, 10));
	return 0;
}
float average(float array[], int n)
{
	int i;
	float aver, sum = array[0];
	for (i = 1;i < n;i++)
		sum = sum + array[i];
	aver = sum / n;
	return(aver);
}